1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
morpeh [17]
3 years ago
14

The change in specific internal energy depends on the path of a process. a)-True b)-False

Engineering
1 answer:
Basile [38]3 years ago
7 0

Answer:

(b) False

Explanation:

The specific internal energy of the system does not depend on the path of the process, it is a state function means its depend on only on the initial and the final position it does not depend on the path which it follow in the process.Internal energy is associated with the random motion of the molecules.

So it is false statement as internal energy is not a path function

You might be interested in
The soil borrow material to be used to construct a highway embankment has a mass unit weight of 107.0 lb/cf and a water content
MrRissso [65]

Answer:

Option D

Explanation:

Given information

Bulk unit weight of 107.0 lb/cf

Water content of 7.3%,=0.073

Specific gravity of the soil solids is 2.62

Specifications

Dry unit weight is 113 lb/cf  

Water content is 6%.

Volume of embankment is 440,000-cy

Borrow material

Dry_{unit,weight}=\frac {bulk_{unit,weight}}{1+water_{content}}=\frac {107}{1+0.073}= 99.72041 lb/cf  

Embankment

Considering that the volume of embankment is inversely proportional to the dry unit weight

\frac {V_{embankment}}{V_{borrow}}=\frac {Dry_{borrow}}{Dry_{embankment}}

Therefore, V_{borrow}=V_{embankment} *\frac {Dry_{embarkement}}{Dry_{borrow}}

V_{borrow}=440,000-cy*\frac {113 lb/cf }{99.72041 lb/cf }= 498594-cy

Therefore, volume of borrow material is 498594-cy

(b)

The weight of water in embankment is found by multiplying the moisture content and dry unit weight.

Assuming that all the specifications are achieved, weight of water in embankment=0.06*113=6.78 lb/cf

Since 1 yd^{3}= 27 ft^{3}

The embankment requires water of  6.78*27*440000= 80546400 lb

Borrow materials’ water will also be 0.073*99.72041=7.27959 lb/cf

Borrow material requires water of 7.27959*27*498594=97998120 lb

Extra water between borrow material and embankment=97998120 lb-80546400 lb=17451720 lb

Unit_{weight}=\frac {17451720}{498594}=35.00186 lb

1 gallon is approximately 8.35 yd^{3} hence

\frac {35.00186 lb/yd^{3}}{8.35}=4.19184 gallons/yd^{3}

That's approximately 4.2 gallons

7 0
3 years ago
1) Relative to electrons and electron states, what does each of the four quantum numbers specify?
Naily [24]

Answer:

Cite two important additional refinements that resulted from the Wave-mechanical

atomic model.

4 0
3 years ago
How has drafting evolved in the 21st century
Mila [183]

Drafting has been around a long time. We can safely assume that since we’ve had a tool in our hands, we’ve been describing plans and technical representations and doodling ideas. Let’s take a closer aspect at drafting and its advance from an under-the-radar part of the method to a very developed skill set.

<u>Explanation</u>

•  1970s – The beginning computer-aided design systems were included in the industry. Following the design engineers tried the learning curve of using CAD, their performance and productivity went through the roof. Over time, CAD software became affordable and more user-friendly, and its fame grew.

•   1990s – CAD software was expanded further to include 3-D characteristics, and quickly the technical designs of the past enhanced increasingly simulated and accessible to engineer.

•   Present – The development of drafting has brought us to the present day, were using 3-D representations is the standard and the aim to generate full virtual prototypes.

8 0
3 years ago
Select the correct text in the passage.
sineoko [7]
It is habahi Yw with yuuuuuy I am a little more confused about
5 0
3 years ago
Read 2 more answers
HELP PLEASE!!!!
DaniilM [7]

Answer:

DESCULPA MAS EU NÃO ENTENDI

8 0
3 years ago
Other questions:
  • Why is a building considered a type of system?
    6·1 answer
  • A small wind tunnel in a university’s undergraduate fluid flow laboratory has a test section that is 20 in. by 20 in. in cross s
    8·1 answer
  • Determine the magnitude of the resultant force and the moment about the origin. Note: the symbol near the 140 N-m moment are not
    15·1 answer
  • Draw an ERD for each of the following situations. (If you believe that you need to make additional assumptions, clearly state th
    15·1 answer
  • Ame:<br> 7. A step-down transformer reduces the primary current.<br> True or false
    8·2 answers
  • Suppose you were a heating engineer and you wished to consider a house as a dynamic system. Without a heater, the average temper
    6·1 answer
  • Consider a 5 m long, air-filled section of a coaxial transmission line, given that the radius of the inner conductor is 10 cm an
    7·1 answer
  • A 0.91 m diameter corrugated metal pipe culvert (n = 0.024) has a length of 90 m and a slope of 0.0067. The entrance has a squar
    5·1 answer
  • How do we need to prepare for the future?
    10·1 answer
  • Tony works as a Sorter in a processing factory. Which qualifications does he most likely have?
    10·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!